Valve-adjusting device for steam-hammers.



- C.J.CARLSON. VALVE ADJUSTING DEVICE FOR STEAM HAMMEBS.

APPLICQTION FILED JULY 23.1917.

Patented 'May 7, 1918.

TZ QZZZsOzz UNITED STATESIPATENT onricn.

CARL J. cAnnson, 0F EASTI-IAMPTON, MASSACHUSETTS.

Specification of Letters Patent.

VALVE- DJUSTING nEvIoE on s'rEAM-nAMMEEs.

Patented May 7, 1918.

Application filed July 23, 1917. Serial N 0. 182,347.

To all whom it may concern:

Beit known that I, CARL J. CARLSON, a citizen of theUnited States,residing at Easthamptomin the county of Hampshire and State ofMassachusetts, have invented certain new and useful Improvements inValve-Adjusting 'Devices for Steam-Hana mers; and I do declare thefollowing to be a full, clear, and exact description of the invention,such' as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to certain new and useful improvements in valveadjusting devices to be more particularly'used in connection with steamdrop hammers. I

The primary object of the invention is to provide an appliance which isdisposed between the valve rod of acsteam drop hammer and'the movableoperating member to regulate the moment of opening and closing of thevalve.

Another object of the invention is to generally improve upon valveoperating devices of this character by the provision of an extremelysimple,,strong, durable and inexpensive construction, one which will beeflicient and reliable in operation, and well adapted to the purpose forwhich it is designed. I

With these and numerous other objects in view, the invention consists ofcertain novel features of construction and the combination andarrangement of parts as will be hereinafter fully described and claimed,the descriptive matter being supplemented by the accompanying drawingsin which similar reference characters designate correspond ing partsthroughout the several views and in which:

Figure 1 is a side elevation of a steam hammer, illustrating theapplication of an appliance constructed in accordance with thisinvention thereto;

Fig. 2 is a front view on an enlarged scale of the device;

' Fig. 3 is a vertical sectional view taken on the plane of the line 33of Fig. 2; and,

Fig. 4 is a horizontal sectional view taken on the plane of the line4.-1 of Fig. 2.

Referring more particularly to the drawings, the letter A represents asteam drop hammer which is shown in conventional form for the purpose ofillustrating the ap As is usual in hammers of this character, the ram islifted by steam which is admitted to :the ram cylinder by means of asuitable valve 13, the latter being usually operated by either a treadleC or a hand lever. D through the medium of a link F and a valve rod G.Oftentimes it is desired to vary the stroke of the ram by determiningorregulating the moment of opening and closing of the valve B, and it isto accomplish such a purpose that the present invention is devised. I

Instead of connecting the-valve rod G directly to the hand lever D as isusually the custom, this valve rod is eccentrically connected to acircularmember 1 by means of a pivot screw 2. The member 1 is pro videdon its inner side with a circular central boss 3 which is received in acorrespondingly shaped and arranged recess 4: in another circular member5, the latter being secured, by means of a'bracket 6, to the hand leverD. Both of the members 1 and 5 are provided with central openings 7 and8 respectively, the opening 7 being countersunk as shown.v Extendingthrough these openings 7 and 8 is a pivot bolts9, the head of which isreceived in the countersunk portion of the opening 7 while threaded onits free end is a clamping nut 10. By this con struction it will be seenthat the members 1 and 5 are movably and turnably mounted with respectto each other.

The member 1 is provided adjacent one of its edges with an arcuate slot11, and through this slot extends a locking screw 12, the inner end 13of which is threaded into the member 5, while the head 14 engages strokeof the ram of the hammer, the screw 12 is loosened in order that theadjusting members 1 and 5 may be moved relatively to each other, whichis done by moving the when it is desired to shorten or lengthen thehandle 16, and then the screw 12 is again tightened so as to maintainthese two parts in their newly adjusted positions. The convenience ofthe adjusting device will be greatly appreciated by those skilled in theart,

From the foregoing description, taken in connection with theaccompanying drawings, the construction, use and operation of the devicewill be readily understood without a more extended explanation.

As various changes in form, proportion, and in the minor details ofconstruction may be resorted to without departing from the spirit ofthis invention, it is to be understood that I do not Wish to limitmyself to the precise construction herein shown and described.

I claim l. The combination of a lever, a pivotally mounted membercarried by said lever and angularly adjustable relative thereto, aclamping element carried by said lever and operable to clamp said memberand hold it in its different adjustments, and an element connected tosaid pivotally mounted member at a point eccentric to the pivotalmounting of the latter, the last said element being operable by saidlever and adjustable relative thereto by means of said pivotally mountedmember.

2. In a device of the character described, the combination of twomembers disposed side by side and turnably connected together so as tobe angularly adjustable with relation to one another, a clamping elementcooperative with one of said members for cla ming the other of saidmembers and thereby retaining them in their difi'erent adjustments,avalve-operating rod connected to one of said members at a pointeccentric to the point at which they are turnably connected, and avalve-operating lever connected to the other of said members.

3. In a device of the class described, the combination of two circularmembers disposed side by side and turnably connected together, one ofsaid members being pro vided with an arcuate slot near one edge thereof,a screw extending through said slot and threaded into the other memberto lock said members in their relatively adjusted positions, a valve rodeccentrically connected to one of said members, and a movable operatingmember connected to the other.

4:. In a device of the class described, the combination of a lever, asupporting member rigidly united with said lever, an adjusting memberturnably mounted on said supporting member, a rod eccentricallyconnected to said adjusting member, and means for maintaining saidsupporting member and said adjusting member in their relatively adjustedpositions.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

CARL J. CARLSON.

lVitnesses VILLIAM H, HANNUM, GnoRGE K. BROCK.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, D. G.

